[Elecraft] David Clark headsets

[alta]

Depending on the model, newer models are noise cancelling electret or 
dynamic.  The headset contains electronic circuitry to make it "look 
like" a carbon mike.

... Reed


On Wednesday 06 March 2002 14:15, you wrote:
> Good point about the mike side of aviation sets.  Better to change
> out that carbon element if fitted with a good quality Heil
> cartridge, or similar, even an electret element from Radio Shack. 
> Of course, and electret needs a voltage in most cases.
> PVDF type elements may not.  Dynamic mike elements from older mikes
> do not need power, if they fit.
>
> 72,
> Stuart K5KVH